90022013 has 2 divisors, whose sum is σ = 90022014. Its totient is φ = 90022012.

The previous prime is 90021983. The next prime is 90022039. The reversal of 90022013 is 31022009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83960569 + 6061444 = 9163^2 + 2462^2 .

It is a cyclic number.

It is not a de Polignac number, because 90022013 - 2⁶ = 90021949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90021982 and 90022000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90022043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45011006 + 45011007.

It is an arithmetic number, because the mean of its divisors is an integer number (45011007).

Almost surely, 2^90022013 is an apocalyptic number.

It is an amenable number.

90022013 is a deficient number, since it is larger than the sum of its proper divisors (1).

90022013 is an equidigital number, since it uses as much as digits as its factorization.

90022013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 90022013 is about 9487.9930965405. The cubic root of 90022013 is about 448.1770084042.

The spelling of 90022013 in words is "ninety million, twenty-two thousand, thirteen".